Do you need a high pagerank or a high search engine rank?
Well a high PageRank doesn't mean that you'll have a high rank on search engines. It's still about anchor text links. Keep them varied and you will be doing a good job.
People say I will sell links from high PageRank blogs/sites. So I need high
PR. Well a high rank could give you more benefits than a high
PR, and well even Google is now penalizing sites that sell
PR. So just be sure what you want and what you want to do!